ISO 1718:1991 Preview
Rock drilling equipment -- Drill rods with tapered connection for percussive drilling
This standard was last reviewed and confirmed* in 2013.
*Therefore this version remains current
Lays down the basic dimensions of drill rods and the necessary dimensions of the tapered connections. These dimensions shall comply with those given in figure 1 and table 1 and in figure 2 and table 2, respectively.